401456347 has 2 divisors, whose sum is σ = 401456348. Its totient is φ = 401456346.

The previous prime is 401456333. The next prime is 401456353. The reversal of 401456347 is 743654104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401456347 - 2⁷ = 401456219 is a prime.

It is a super-2 number, since 2×401456347² = 322334397093168818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401256347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200728173 + 200728174.

It is an arithmetic number, because the mean of its divisors is an integer number (200728174).

Almost surely, 2^401456347 is an apocalyptic number.

401456347 is a deficient number, since it is larger than the sum of its proper divisors (1).

401456347 is an equidigital number, since it uses as much as digits as its factorization.

401456347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 401456347 is about 20036.3755954015. The cubic root of 401456347 is about 737.6994213944.

The spelling of 401456347 in words is "four hundred one million, four hundred fifty-six thousand, three hundred forty-seven".